Dockside Chat - I Need A Highly Reflective Paint

I have a sign above a storefront in a mall. It is individual letterslit by florescent tubes in a channel 6 inches below. Doesn't show upwell. Just got a quote for $4000 to replace with internally litletters. I want to try reflective paint first. Any suggestions for apaint or a highly reflective additive?

I'll suggest touching base with 3M for some reflective tape... That stuff they sell for tractor trailers is amazing.. I got some on ebay

http://www.amesresearch.com/reflect.htm

Thanks. I am looking at Ames, but the face of my letters is only a few square feet, so if you know where to buy less than 5 gallons, I am interested.

I am pretty sure I have seen *clear* reflective spray paint (home depot or lowes, somewhere like that) that looked pretty interesting, supposed to be a safety reflective feature at night, that might be worth trying out to see if it has any effect?

A hobby/model/craft store probably would have an interesting selection of ultra-bright paints.

You may also get good results by replacing the flourescent tubes with "daylight" or high-UV content tubes of the same size. (or go crazy t and paint the letters with dayglo paint and light them with blacklight tubes)

Edit: this may be the spray paint I've seen at HD etc: http://www.invplus.com/aerosol/catalog_krylon_reflect.htm but does point out that it is a "direct" light source that makes it light up, soft indirect lighting may have no effect

Use google to find out what they use to paint the runways at airports. I can not think of a paint more reflective than that.